Home / 401,772.32-602,639-149,102.07

Finding the Fourth Proportional to 401,772.32, 602,639 and 149,102.07

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Solution

The fourth proportional to 401,772.32, 602,639 and 149,102.07 is: 223,645.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,772.32 : 602,639 = 149,102.07 : x
  2. Step 2: Convert to fraction form
    401,772.32/602,639 = 149,102.07/x
  3. Step 3: Cross multiply
    401,772.32x = 602,639 × 149,102.07
  4. Step 4: Simplify right side
    401,772.32x = 89,854,722,362.73
  5. Step 5: Solve for x
    x = 89,854,722,362.73/401,772.32
  6. Step 6: Final answer
    x = 223,645.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.